• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to a collector box (1) for a heat exchanger comprising a collector (5) having an at least partially rounded shape and comprising: - a plurality of openings (7) for the passage of a plurality of tubes (3) heat exchange of the heat exchanger, and - a plurality of collars (9) surrounding the openings (7). According to the invention, the collector (5) comprises a plurality of corrugations (11), and the collars (9) are made at the corrugations (11) of the collector (5) and respectively have a substantially flared shape directed to the side. opposite the volume defined by the manifold (1).
    公开号:FR3015016A1
    申请号:FR1362571
    申请日:2013-12-13
    公开日:2015-06-19
    发明作者:Christian Riondet；Jean-Marc Lesueur
    申请人:Valeo Systemes Thermiques SAS；
    IPC主号:
    专利说明:

    [0001] The invention relates to a manifold for a heat exchanger, in particular for a motor vehicle. The invention also relates to a corresponding heat exchanger. Such a heat exchanger is for example used in a motor vehicle, especially as a cooling system radiator, or in high pressure applications for example as a condenser of an air conditioning system. Generally, such a heat exchanger comprises a bundle of tubes and at least one manifold. This manifold is configured to receive the ends of the tubes of the heat exchanger. For this purpose, the header generally comprises a manifold for example in the form of a header plate. The manifold usually also has a lid which is fixed to the header plate to close the manifold. The header plate is used to dispense the fluid to the heat exchange tubes or to collect the fluid from these heat exchange tubes. The collector plate is generally made of aluminum and can be made for example by stamping. The collector plate has a generally flat bottom. However, in pressure-resistant applications, it is known that the collector has a bottom that is at least partially rounded to hold the pressure. On the other hand, the flat-bottomed or round-bottomed collector plate is usually provided with surrounding collars. openings through which the tube ends of the heat exchanger bundle. Apertures such as slots are made in the header plate to introduce the tubes, for example with removal of material or on the contrary without removal of material. In the latter case, the material is pushed by the tool towards the inside of the volume defined by the manifold, thus creating a collar around the opening for the introduction of the tube. We speak of standard collars. The collars make it possible to have good contact between the tube and the opening in the collector plate and to obtain good brazing quality in the case of brazed exchangers, for example all-aluminum. The tubes are generally inserted into the opening in the same direction as the tooling to make the collars around the openings. The inserted tubes generally extend partially inside the manifold to ensure proper brazing and a tight, tight assembly. According to some solutions, the tubes exceed in the fluid reservoir volume by nearly half the volume of the header. However, exceeding the tubes in the volume defined by the internal volume of the fluid reservoir manifold creates an internal pressure drop on the fluid circuit. This decrease in internal pressure requires increasing the pumping power to maintain a certain flow of fluid. According to a known solution, a flat-bottom header can have so-called inverted collars, that is to say formed in the opposite direction to the insertion direction of a heat exchange tube. The collars then have a flared shape facing away from the volume defined by the manifold. However, such inverted collars have a small flare, ie known inverted collars define a low input cone for insertion of the heat exchange tubes. The inlet cone may therefore not be sufficient to allow simple insertion of the heat exchange tubes, and the known solutions of the prior art may present difficulties in inserting the heat exchange tubes into the manifold. Because of this difficulty of insertion of the heat exchange tubes into the collector having such inverted collars, such a solution of inverted collars for a collector with a rounded bottom is not envisaged in the prior art for the benefit of collars. so-called standards. The object of the invention is to propose a collecting box making it possible to solve these problems of the prior art. To this end, the invention relates to a header box for a heat exchanger comprising a manifold having an at least partially rounded shape and comprising a plurality of openings for the passage of a plurality of heat exchange tubes. of the heat exchanger, and a plurality of collars surrounding the openings, characterized in that the collector further comprises a plurality of corrugations, and in that the collars are formed at the level of the corrugations of the collector and respectively have a shape substantially Flared directed to the opposite side to the volume defined by the manifold. According to a preferred embodiment, the flanges are formed at 10 vertices of the corrugations facing away from the volume defined by the manifold. Such an at least partially rounded box is adapted to hold the pressure in high pressure applications, and the collector with such reversed collars, that is to say whose direction is opposite to the usual direction of insertion. tubes, allows to receive the ends of the tubes that previously protruded within the volume defined by the manifold. The ends of the tubes therefore no longer open into the volume defined by the manifold. This results in a significant reduction in the pressure drop associated with the flow of a fluid in the tubes of the heat exchanger. In conclusion, by combining an at least partially rounded collector and a plurality of corrugations, there is sufficient material for the formation of inverted collars sufficiently flared to facilitate the introduction of the heat exchange tubes. Indeed, the inverted flanges of the invention define an inlet opening for the insertion of the heat exchange tubes, substantially tulip-shaped, which is sufficiently large thanks to this contribution of material. Said manifold may further comprise one or more of the following features, taken separately or in combination: the manifold has at least one substantially curved wall outwardly of the volume defined by the manifold, the corrugations are formed on the wall, the corrugations respectively have a height greater than about 30% of the tube pitch, this height is sufficient to form a collar, the collars respectively have a substantially conical shape, a cone formed by a collar has a angle of the order of 30 °, facilitating the introduction at the same time of the plurality of heat exchange tubes in the collector openings surrounded by collars, the collars respectively have a first width and a second width greater than the first width , for example of the order of twice the first width, thus providing an opening wide enough to ciliter the introduction of all the heat exchange tubes in the openings of the collector, the first width is substantially equal to the width of a tube intended to be inserted into the opening, the collars respectively have two substantially convex flared edges, whose convexity is oriented towards the outside of the volume defined by the manifold, the collars have a height of the order of half the height of a corrugation, the collars are thinned with respect to the corrugations on the collector, so that the corrugations respectively have a first thickness and the collars respectively have a second thickness less than the first thickness of the corrugation, the thinning of the material at a collar is at least greater than 30% of the thickness initial material, or even locally greater than 50% of the initial thickness of the material. By thinning the material the necks can be lengthened to obtain a flare large enough to facilitate the introduction of the tubes.
    [0002] The invention also relates to a heat exchanger, in particular for motor vehicles, comprising a bundle of heat exchange tubes whose ends are fixed to at least one header, as defined above. It can be a brazed heat exchanger.
    [0003] Alternatively, it may be a heat exchanger whose elements forming the manifold are mechanically assembled to each other. According to one embodiment, the heat exchange tubes have a height of between 0.8 mm and 2.5 mm, preferably between 1.2 mm and 1.8 mm. The pitch of the heat exchange tubes, that is to say the spacing between two heat exchange tubes 5, is for example between 5mm and 10mm, preferably between 6 mm and 8mm. Other features and advantages of the invention will appear more clearly on reading the following description, given by way of illustrative and non-limiting example, and the appended drawings in which: FIG. 1 is a perspective view of a collector box according to the invention for a heat exchanger, FIG. 2 is a partial sectional view of the collector box of FIG. 1, receiving an end of a partially represented tube of a tube bundle of the heat exchanger. FIG. 3 is a side sectional view of the manifold of FIG. 1, FIG. 4a is a first perspective view of a collector of the collector box of FIGS. 1 to 3, FIG. 4b is a second view. in perspective of the manifold manifold 20 of Figures 1 to 3, Figure 5 is a cross-sectional view of the collector of Figures 4a and 4b, and Figure 6 is an enlarged view of the collector of Figure 5 receiving tube ends of the heat exchanger. In these figures, the identical elements bear the same references. FIG. 1 schematically and schematically illustrates a fluid manifold 1 for a heat exchanger (not shown), particularly in the automotive field. The heat exchanger can be used in particular as a radiator or condenser for a motor vehicle. In particular, the invention can be applied for a brazed heat exchanger. The heat exchanger comprises a bundle of tubes 3. Only one end of a tube 3 is visible in Figure 2. The tubes 3 are for example made of aluminum or aluminum alloy. These are, for example, tubes 3 which are substantially flattened.
    [0004] The manifold 1 is configured to receive at least one end of a tube 3 of the heat exchanger, more specifically to receive the ends of a plurality of tubes 3, the heat exchanger (not shown). Only one end of a tube 3 is visible in FIG.
    [0005] The collecting box 1 comprises for this purpose a manifold 5. The manifold 1 further comprises a lid 6 fixed to the manifold 5, so as to close the manifold 1. The manifold 5 is for example made of aluminum or aluminum alloy. aluminum. The lid 6 can be made of aluminum alloy aluminum, or alternatively plastic. The lid 6 can be attached to the manifold 5 for example by clipping, soldering or crimping. In addition, the collector 5 has a plurality of openings 7 for the passage of the ends of the tubes 3. The openings 7 have for example a substantially elongated shape, such as slots. The ends of the tubes 3 received in the openings 7 can then be brazed, for example, to the collector 5. According to one embodiment, the heat exchange tubes 3 have a height of between 0.8 mm and 2.5 mm, preferably between 1.2mm and 1.8mm. The pitch of the heat exchange tubes 3, that is to say the spacing between two heat exchange tubes 3, is for example between 5 mm and 10 mm, preferably between 6 mm and 8 mm. According to the illustrated embodiment, the collector 5 has a wall 8 forming a box bottom. The manifold 1 further comprises side walls 8 'connected to this box bottom 8.
    [0006] This is a box bottom 8 of at least partially rounded shape. According to the illustrated embodiment, the wall 8 forming a bottom box, also called bottom wall 8, has a substantially convex shape towards the outside of the volume defined by the manifold 1. Thus, the bottom wall 8 of the collector 5 has a shape substantially concave with respect to the internal volume defined by the manifold 1, and substantially convex relative to the tube bundle 3 of the heat exchanger whose convexity is oriented outwardly of the volume defined by the manifold 1. As can be seen in FIGS. 1 to 3, the manifold 1 further comprises a predefined number of collars 9 formed on the collector 5 at the openings 7 for receiving the ends of the tubes 3. More precisely, each opening 7 is surrounded by a collar 9. The collars 9 are here made without removal of material. The collector 5 further comprises a plurality of deformations 11. These deformations 11 are made at the substantially convex bottom wall 8 of the collector 5. The deformations 11 are for example made to form a regular pattern. According to the embodiment illustrated, it is waves or waves 11. The corrugations 11 may be made symmetrically with respect to the longitudinal axis of the bottom wall 8 of the collector 5. The corrugations 11 thus have 25 vertices extending alternately on either side of the longitudinal axis of the bottom wall 8 of the collector 5. In other words, the corrugations 11 have, for example, a plurality of vertices directed towards the interior of the volume defined by the manifold 1 and a plurality of opposing vertices directed away from the volume defined by the manifold, and thus outwardly of the manifold 1 and to the bundle of tubes 3 of the heat exchanger. The collars 9, better visible in FIGS. 4a, 4b, are formed at the level of the corrugations 11, more precisely at the vertices of the corrugations 11 directed towards the opposite of the volume defined by the collecting box. In particular, the openings 7 are formed by piercing or perforating the collector 5 at the vertices of the corrugations 11 directed towards the opposite of the volume defined by the collecting box, and the collars 9 are made by the material around these openings 7. In order to To be able to have enough material to form the flanges 9 at the level of the corrugations 11, the corrugations 11 are made with a sufficient height h (cf. FIG. 5), for example with a height h that is greater than 30% of the pitch of tube. The collars 9 thus formed are directed towards the opposite of the volume defined by the manifold 1, namely towards the bundle of tubes 3 of the heat exchanger. We are talking about 9 9 inverted collars. Thus, referring again to FIG. 2 and FIG. 6, when the end of a tube 3 of the heat exchanger is inserted into an opening 7 surrounded by such an inverted collar 9, this tube end 3 is located in a zone Z situated between the vertices of the corrugations 11 which are oriented towards the interior of the volume defined by the header 1 and the level of the bottom of the box 8 of the collector 5, but does not exceed in the volume defined by the manifold 1. The absence of tubes 3 opening into the volume of the header 1 improves the performance in terms of fluid flow. The collars 9 have a height h sufficient to allow the insertion of the ends of the tubes 3, for example of the order of half the height h of a corrugation 11. In addition, the collars 9 have a shape flared general, such as a tulip shape. More specifically, the collars 9 have respectively a substantially conical shape, for example an angle α of the order of 30 ° (see Figure 5). A collar 9 thus has two flared edges 9a, 9b, corresponding to the two large edges, connected to each other by two small edges 9c, 9d. This flared or substantially conical shape facilitates the introduction of the ends of the tubes 3 into the manifold 5 from the outside of the volume defined by the manifold 1 towards the inside of the volume defined by the manifold 1. The two Flared edges 9a, 9b have, for example, a substantially convex shape whose convexity is oriented towards the outside of the volume defined by the manifold 1. With reference to FIG. 5, the tulip-shaped flanges 9 present respectively: a first width 11 at the pierced or perforated apex of the associated corrugation 11 corresponding to the smallest width of the collar 9, and a second peripheral width 12, which corresponds to the largest width of the collar 9. The first width is substantially equal to or slightly greater than the width of a tube 3 intended to be inserted into the opening 7. The largest width 12 defines the opening 7 surrounded by the llet 9 for the insertion of the end of a tube 3. The second width 12 is provided sufficiently wide to allow simple insertion, and in particular at the same time, the ends of all the tubes 3 of the exchanger The second width 12 is for example of the order of twice the first width 11 of the collar 9. Moreover, the collars 9 can be thinned with respect to the corrugations 11 on the collector 5. Indeed, with reference to FIG. 6, a corrugation 11 has, for example, a first thickness el, and the collar 9 has a second thickness e2 that is smaller than the first thickness and the corrugation 11. The collar 9 can be thinned both at the large flared edges 9a, 9b 30 as small connecting edges 9c and 9d. By way of example, the material is thinned at the level of the collar 9 which can go beyond 30%, or even locally beyond 50% of the initial thickness of the material. By thinning the material at the level of a collar 9, this collar 9 can be lengthened.
    [0007] It is therefore understood that a collector 5 comprising such inverted collars 9 facilitates the introduction of the ends of the multiplicity of heat exchange tubes 3 of the heat exchanger at the same time and in a simple manner without the need for specific tools in particular to guide each tube 3 in the associated opening 7.
    [0008] Indeed, the flared and inverted collars 9 provide a sufficient opening for the introduction from outside the manifold 1 towards the inside of the volume defined by the manifold 1. Finally, these inverted collars 9 allow the insertion of ends of the tubes 3 without these ends opening into the volume defined by the manifold 1 thus promoting the flow of fluid inside the manifold 1.
    权利要求:
    Claims (16)
    [0001]
    REVENDICATIONS1. A collector box (1) for a heat exchanger comprising a collector (5) having an at least partially rounded shape and comprising: - a plurality of openings (7) for the passage of a plurality of heat exchange tubes (3) of the heat exchanger, and - a plurality of collars (9) surrounding the openings (7), characterized in that: - the collector (5) further comprises a plurality of corrugations (11), and in that the collars (9) are formed at the corrugations (11) of the collector (5) and respectively have a substantially flared shape directed to the opposite side to the volume defined by the manifold (1).
    [0002]
    2. header box according to claim 1, wherein the collars (9) are formed at vertices of the corrugations (11) facing away from the volume defined by the manifold (1).
    [0003]
    3. header box according to one of claims 1 or 2, wherein the collector (5) has at least one wall (8) of substantially convex shape towards the outside of the volume defined by the manifold (1).
    [0004]
    4. collector box according to the preceding claim, wherein the corrugations (11) are formed on the wall (8).
    [0005]
    5. header box according to any one of the preceding claims, wherein the corrugations (11) respectively have a height (h) greater than 30% of the tube pitch (3).
    [0006]
    A manifold according to any one of the preceding claims, wherein the collars (9) have a substantially conical shape, respectively.
    [0007]
    7. collector box according to the preceding claim, wherein a cone formed by a collar (9) has an angle (a) of the order of 30 °.
    [0008]
    8. header box according to any preceding claim, wherein the collars (9) have respectively: - a first width (h) and a second width (12) greater than the first width (h), for example order of twice the first width (h).
    [0009]
    9. Collector box according to the preceding claim, wherein the first width (h) is substantially equal to the width of a tube (3) intended to be inserted into the opening (7).
    [0010]
    A manifold according to any one of the preceding claims, wherein the collars (9) respectively have two substantially flared (9a, 9b) convex edges, the convexity of which is directed outwardly of the volume defined by the manifold ( 1).
    [0011]
    11. collector box according to any one of the preceding claims, wherein the collars (9) have a height (h ') of the order of half the height (h) of a corrugation (11).
    [0012]
    12. header box according to any one of the preceding claims, wherein the collars (9) are thinned relative to the corrugations (11) on the collector (5).
    [0013]
    13. Collector box according to the preceding claim, wherein the thinning of the material at a collar (9) is at least greater than 30% of the initial thickness of the material.
    [0014]
    14. Heat exchanger, in particular for a motor vehicle, comprising a bundle of heat exchange tubes (3) whose ends are fixed to at least one collector box (1), characterized in that the collector box (1) ) is according to any one of the preceding claims.
    [0015]
    15. Heat exchanger according to the preceding claim, wherein the heat exchange tubes (3) have a height between 0.8mm and 2.5mm, preferably between 1.2 mm and 1.8mm.
    [0016]
    16. Heat exchanger according to one of claims 14 or 15, wherein the pitch of the heat exchange tubes (3) is between 5mm and 10mm, preferably between 6 mm and 8mm.
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    同族专利:
    公开号 | 公开日
    WO2015086195A1|2015-06-18|
    KR20160098413A|2016-08-18|
    EP3080542A1|2016-10-19|
    JP2017500528A|2017-01-05|
    JP2018189363A|2018-11-29|
    CN106461353A|2017-02-22|
    FR3015016B1|2019-05-17|
    US20160377357A1|2016-12-29|
    EP3080542B1|2020-09-02|
    JP2020128865A|2020-08-27|
    引用文献:
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    法律状态:
    2015-12-31| PLFP| Fee payment|Year of fee payment: 3 |
    2016-12-29| PLFP| Fee payment|Year of fee payment: 4 |
    2018-01-02| PLFP| Fee payment|Year of fee payment: 5 |
    2019-12-31| PLFP| Fee payment|Year of fee payment: 7 |
    2020-12-31| PLFP| Fee payment|Year of fee payment: 8 |
    2021-12-31| PLFP| Fee payment|Year of fee payment: 9 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1362571|2013-12-13|
    FR1362571A|FR3015016B1|2013-12-13|2013-12-13|COLLECTOR BOX AND THERMAL EXCHANGER CORRESPONDING|FR1362571A| FR3015016B1|2013-12-13|2013-12-13|COLLECTOR BOX AND THERMAL EXCHANGER CORRESPONDING|
    CN201480075251.4A| CN106461353A|2013-12-13|2014-10-14|Collection box and corresponding heat exchanger|
    PCT/EP2014/071941| WO2015086195A1|2013-12-13|2014-10-14|Collection box and corresponding heat exchanger|
    JP2016538586A| JP2017500528A|2013-12-13|2014-10-14|Recovery box and corresponding heat exchanger|
    US15/104,035| US20160377357A1|2013-12-13|2014-10-14|Collection box and corresponding heat exchanger|
    EP14783865.0A| EP3080542B1|2013-12-13|2014-10-14|Header box and corresponding heat exchanger|
    KR1020167018906A| KR20160098413A|2013-12-13|2014-10-14|Collection box and corresponding heat exchanger|
    JP2018136979A| JP2018189363A|2013-12-13|2018-07-20|Collection box and corresponding heat exchanger|
    JP2020083313A| JP2020128865A|2013-12-13|2020-05-11|Recovery box and heat exchanger corresponding thereto|
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